You know, I've seen you post numerous times this cycle and thought to myself if you didn't get in this cycle, you could next cycle as long as you brushed up on your interview skills and perhaps beefed up the ECs a tiny bit to show you're still interested in the field. What you did, just now, is pretty much akin to suicide for your chances next cycle if you have the withdraw notation on your transcript. Why would you finish off a downward trend with full W's. I almost hope you've been trolling the whole cycle on sdn. When seen at the end of a downward trend, they're pretty much F's (even though they're not inputted into your GPAs) and tell adcoms you just couldn't handle it. So I hope you withdrew before the notation would be placed-judging that it's March though, it seems unlikely.
From my understanding on your previous posts, your application for next cycle, so far, is substantially inferior. You'll really need to work some magic in order to make adcoms see past your gpa trend and withdrawing issue. I'd almost say getting a higher DAT, having a mind blowing personal statement, and substantially more ECs are now a requirement for you to get interviews next cycle.
When you say rejected, do you mean put on waitlists? If so, those waitlists are now your best shot at getting in for the near future. I would keep in contact with each school that waitlisted you and express sincere interest. No more of that [is it worth going to LECOM/turning down a hypothetical acceptance to wait an extra cycle] stuff. However, with how you regard some dental schools and your most recent academic decisions, I question if you actually want to get into the field.
